CN102978675B - Concrete conveying cylinder, manufacturing method thereof and pumping equipment comprising concrete conveying cylinder - Google Patents
Concrete conveying cylinder, manufacturing method thereof and pumping equipment comprising concrete conveying cylinder Download PDFInfo
- Publication number
- CN102978675B CN102978675B CN201210508882.3A CN201210508882A CN102978675B CN 102978675 B CN102978675 B CN 102978675B CN 201210508882 A CN201210508882 A CN 201210508882A CN 102978675 B CN102978675 B CN 102978675B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cylinder body
- hardness
- concrete cylinder
- aluminum oxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000005086 pumping Methods 0.000 title claims abstract description 21
- 230000007704 transition Effects 0.000 claims abstract description 39
- 239000003792 electrolyte Substances 0.000 claims abstract description 37
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 36
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000002360 preparation method Methods 0.000 claims abstract description 34
- 238000003754 machining Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 58
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 50
- 230000008569 process Effects 0.000 claims description 30
- 239000010409 thin film Substances 0.000 claims description 30
- 239000008151 electrolyte solution Substances 0.000 claims description 14
- 238000005470 impregnation Methods 0.000 claims description 14
- 159000000000 sodium salts Chemical class 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000011734 sodium Substances 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 8
- 230000003746 surface roughness Effects 0.000 claims description 8
- 239000012266 salt solution Substances 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229910001415 sodium ion Inorganic materials 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 239000003973 paint Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000003245 working effect Effects 0.000 description 11
- 239000003921 oil Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 6
- 229920000180 alkyd Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000002966 varnish Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000011224 oxide ceramic Substances 0.000 description 2
- 229910052574 oxide ceramic Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a conveying cylinder, a manufacturing method thereof and pumping equipment comprising the conveying cylinder. The manufacturing method of the concrete conveying cylinder comprises the following steps: s1, taking aluminum alloy, and machining to form a preparation cylinder body with the wall thickness of 8-60 mm; s2, coating insulating paint on the non-working surface of the preparation cylinder body to form a transition cylinder body; s3, the transition cylinder body is wholly immersed into the alkaline electrolyte, and an alumina ceramic film layer with the surface hardness of HV 1000-HV 1800 is formed on the inner surface and the outer surface of the prepared cylinder body through micro-arc hardening treatment, so that the concrete conveying cylinder is obtained. According to the manufacturing method of the concrete conveying cylinder, the whole weight of the pumping cylinder is reduced by controlling the aluminum alloy made of lighter materials, so that the prepared concrete conveying cylinder is easy to assemble. Meanwhile, an alumina ceramic film layer with higher hardness is formed on the working surface of the concrete conveying cylinder through micro-arc hardening treatment, so that the hardness of the working surface of the concrete conveying cylinder is improved, and the service life of the concrete conveying cylinder is further prolonged.
Description
Technical field
The present invention relates to concrete construction field, especially relate to and a kind ofly carry concrete cylinder and manufacture method thereof and comprise its pumping equipment.
Background technology
Existing concrete pump in delivering concrete process, working-surface and the constantly phase mutual friction at work of concrete piston of conveying concrete cylinder, simultaneously concrete when carrying because of flow at high speed and the working-surface also serious wear of carrying concrete cylinder.These wearing and tearing reduce the work-ing life of conveying concrete cylinder, easily produce chromium coating hardness not and by sandstone (SiO in concrete simultaneously
2) scratch, make cylinder body working face coarse, and then accelerate concrete piston wear, and piston wear accelerates the accelerated wear test phenomenon of concrete cylinder wearing and tearing again.
In order to extend the work-ing life of conveying concrete cylinder, avoid the generation of concrete cylinder accelerated wear test phenomenon, conveying concrete cylinder in existing concrete handling equipment has structure as shown in Figure 1 usually, steel/alloy is adopted to make cylinder barrel 1 ', hard chrome coating 3 ' is formed, to obtain higher hardness again at the internal layer hard chrome plating of this cylinder barrel 1 '.
But, there is following shortcoming in such steel matter conveying concrete cylinder of the prior art: 1, cylinder barrel adopts steel or steel alloy to make, material weight comparatively large (general one group of concrete cylinder weight is more than 1 ton), difficulty is brought on the one hand to assembling, easily cause car load overweight on the other hand, bring difficulty to vehicle design; 2, inwall adopts electroplating technology hard chrome plating, the comparatively complicated and easy contaminate environment of technique; 3, prepared conveying concrete inside wall of cylinder hardness is generally approximately HV850 ~ 950, needs to improve further.
Summary of the invention
The object of the invention is to overcome prior art deficiency, provides a kind of and carries cylinder and manufacture method thereof and comprise its pumping equipment, to improve the hardness of conveying concrete cylinder, reduce the quality of conveying cylinder.
For this reason, provide a kind of manufacture method of carrying concrete cylinder in the present invention, comprise the following steps: S1, get aluminium alloy, form through machining the preparation cylinder body that wall thickness is 8mm ~ 60mm; S2, on the non-working surface of preparation cylinder body application insullac, form transition cylinder body; S3, by transition cylinder body mass-impregnation to alkaline electrolyte, on the working-surface of transition cylinder body, form through the differential of the arc hardening treatment alumina-ceramic thin film layer that surface hardness is HV1000 ~ HV 1800, obtain conveying concrete cylinder.
Further, in above-mentioned steps S3, the step of differential of the arc hardening treatment comprises further: at normal temperatures, by transition cylinder body mass-impregnation in alkaline electrolyte, temperature is kept to be 15 ~ 40 DEG C, aluminium alloy cylinder is applied the DC pulse current of 100 ~ 5000Hz as anode, control voltage, make the minimum voltage of pulse within the scope of 15 ~ 50V, maximum voltage is within the scope of 150 ~ 500V, process 20 ~ 60min, the working-surface of transition cylinder body is formed the alumina-ceramic thin film layer that thickness is 40 ~ 200 μm, obtains conveying concrete cylinder.
Further, above-mentioned alumina-ceramic thin film layer comprises aluminum oxide tectorium and aluminum oxide tight zone, in step S3, step is as follows: at normal temperatures, by transition cylinder body mass-impregnation in alkaline electrolyte, temperature is kept to be 15 ~ 25 DEG C, aluminium alloy cylinder is applied the DC pulse current of 100 ~ 1000Hz as anode, the minimum voltage of setting pulse is within the scope of 20 ~ 30V, the highest within the scope of 200 ~ 250V, process 35 ~ 40min, it is 30 ~ 150 μm that the working face of preparation cylinder body forms thickness successively; Hardness is the aluminum oxide tight zone of HV1000 ~ 2000, and thickness is 10 ~ 15 μm; Hardness is the aluminum oxide tectorium of HV700 ~ 1000, obtains conveying concrete cylinder.
Further, above-mentioned alkaline electrolyte is 8 sodium salt solutions that pH value is more than or equal to, and wherein the concentration of Na ion is 10 ~ 15g/l.
Further, above-mentioned sodium salt solution is the mixing solutions of NaOH and sodium salt, and sodium salt is one or more in Na3PO4, Na2SiO3, NaAlO2.
Further, above-mentioned steps S2 comprises further: will prepare cylinder surface polishing, after oil removing on its non-working surface application insullac, form transition cylinder body.
Further, above-mentioned steps S3 comprises further: A, the conveying concrete cylinder obtained taken out from alkaline electrolyte cleaning take out conveying cylinder surfaces electrolytic solution through differential of the arc hardening treatment; B, the working-surface of the conveying concrete cylinder after surface drying carried out oilstone Hang and grind process, obtain the finished product conveying concrete cylinder that working surface roughness is less than 0.3.
Further, the above-mentioned step being also included in wound composite on conveying concrete cylinder outside surface after step s 3.
Meanwhile, additionally provide a kind of conveying concrete cylinder in the present invention, this conveying concrete cylinder comprises: cylinder body is made up of aluminum alloy material, and wall thickness is 8 ~ 60mm; Alumina-ceramic thin film layer covers on the surfaces externally and internally of cylinder body, and the hardness of alumina-ceramic thin film layer surfaces externally and internally is HV1500 ~ 2000, and thickness is 60 ~ 200 μm.
Further, above-mentioned alumina-ceramic thin film layer comprises: aluminum oxide tight zone, covers on inner surface of cylinder block, and the thickness of aluminum oxide tight zone is 30 ~ 150 μm, and hardness is HV1000 ~ 2000; Aluminum oxide tectorium, on the internal surface of the aluminum oxide tight zone covered, and the thickness of aluminum oxide tectorium is 10 ~ 15 μm, and hardness is HV700 ~ 1000.
Meanwhile, additionally provide a kind of pumping equipment in the present invention, comprise conveying concrete cylinder and the concrete piston of cooperating, it is characterized in that, conveying concrete cylinder is above-mentioned conveying concrete cylinder.
The present invention has following beneficial effect: conveying concrete cylinder provided by the present invention and manufacture method thereof and comprise its pumping equipment, wherein carrying the overall weight reducing pumping cylinder in the manufacture method of concrete cylinder by controlling the lighter aluminium alloy of employing material, making prepared conveying concrete cylinder be easy to assembling.Meanwhile, form the higher alumina-ceramic thin film layer of hardness by differential of the arc hardening treatment at the working-surface of conveying concrete cylinder, improve the hardness on conveying concrete cylinder working surface.And the object of conveying concrete cylinder bulk strength prepared by realizing improving by the coordinated that to form wall thickness be 8mm ~ 60mm aluminium alloy cylinder and hardness are HV1500 ~ 2000 alumina-ceramic thin film layer and hardness, extend the work-ing life of this conveying concrete cylinder.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
Accompanying drawing form this specification sheets a part, for understanding the present invention further, accompanying drawing shows the preferred embodiments of the present invention, and be used for principle of the present invention is described together with specification sheets.In figure:
Fig. 1 shows the structural representation according to carrying concrete cylinder in prior art;
Fig. 2 shows the structural representation carrying concrete cylinder according to the present invention; And
Fig. 3 shows the local structure enlarged diagram carrying concrete cylinder according to the present invention.
Embodiment
Be described in detail to embodiments of the invention below in conjunction with accompanying drawing, but following embodiment and accompanying drawing are only understand the present invention, and can not limit the present invention, the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
In the typical embodiment of one of the present invention, provide a kind of manufacture method of carrying concrete cylinder, comprise the following steps: S1, get aluminium alloy, form through machining the preparation cylinder body that wall thickness is 8mm ~ 60mm; S2, on the non-working surface of preparation cylinder body application insullac, form transition cylinder body; S3, by transition cylinder body mass-impregnation to containing the alkaline electrolyte of aluminium element, the hardness forming surface through differential of the arc hardening treatment on the working-surface of transition cylinder body is the alumina-ceramic thin film layer of HV1000 ~ HV 1800, obtains conveying concrete cylinder.
The manufacture method of above-mentioned conveying concrete cylinder provided by the present invention, by controlling the overall weight of the aluminium alloy reduction pumping cylinder adopting material lighter, makes prepared conveying concrete cylinder be easy to assembling.Meanwhile, form the higher alumina-ceramic thin film layer of hardness by differential of the arc hardening treatment at the working-surface of conveying concrete cylinder, improve the hardness on conveying concrete cylinder working surface.And by formed wall thickness for coordinated that 8mm ~ 60mm aluminium alloy cylinder and surface hardness are HV1500 ~ 2000 alumina-ceramic thin film layer realize improving prepared by conveying concrete cylinder bulk strength and the object of hardness, extend the work-ing life of this conveying concrete cylinder.In addition, the method adopts the more environmental protection of the more existing chrome-plated process of differential of the arc hardening treatment, and operation efficiency is higher.
In the preferred embodiment of the present invention, in the manufacture method of above-mentioned conveying concrete cylinder, in step S3, the step of differential of the arc hardening treatment comprises further: at normal temperatures, by transition cylinder body mass-impregnation in alkaline electrolyte, temperature is kept to be 15 ~ 40 DEG C, aluminium alloy cylinder is applied 100 ~ 5000Hz as anode, be preferably the DC pulse current of 100 ~ 1000Hz, control minimum voltage within the scope of 15 ~ 50V, maximum voltage is within the scope of 150 ~ 500V, process 20 ~ 60min, it is 20 ~ 200 μm that the working-surface of transition cylinder body is formed thickness, be preferably the alumina-ceramic thin film layer of 40 ~ 200 μm, obtain conveying concrete cylinder.
Limit the parameter of differential of the arc hardening treatment in the method, under the Collaborative Control of above-mentioned given various parameters, in the conveying concrete cylinder formed, the structure of surface alumina oxide ceramic film is more compact, and reaches the requirement that thickness is 20 ~ 200 μm.Conveying concrete cylinder prepared in this case more can be adapted to the requirement of concrete conveyance, is conducive to extending the work-ing life sending concrete.
In actually operating, can using stainless steel as cathode of electrolytic tank, the working-surface of aluminium alloy transition cylinder body, as anode, adopts direct current pulse power source to be energized, to form alumina-ceramic thin film layer on the working-surface of transition cylinder body.
In the preferred embodiment of the present invention, in the manufacture method of above-mentioned conveying concrete cylinder, alumina-ceramic thin film layer comprises aluminum oxide tectorium and aluminum oxide tight zone, in step S3, step is as follows: at normal temperatures, by transition cylinder body mass-impregnation in alkaline electrolyte, temperature is kept to be 15 ~ 25 DEG C, aluminium alloy cylinder is applied the DC pulse current of 800Hz as anode, the minimum voltage of setting pulse is within the scope of 20 ~ 30V, the highest within the scope of 200 ~ 250V, process 35 ~ 40min, it is 30 ~ 150 μm that the working face of preparation cylinder body forms thickness successively; Hardness is the aluminum oxide tight zone of HV1000 ~ 2000, and thickness is 10 ~ 15 μm; Hardness is the aluminum oxide tectorium of HV700 ~ 1000, obtains conveying concrete cylinder.
When adopting differential of the arc hardening treatment, under the effect of pulsed current, at aluminum alloy surface generation arc-over, oxidizing reaction occurs and becomes aluminum oxide, the high temperature of generation is by further for aluminum oxide ceramic.Owing to there is thermograde, this discharge process can make alumina-ceramic thin film layer be formed near the alumina-ceramic tight zone of transition cylinder body and the alumina-ceramic tectorium away from transition cylinder body.In the manufacture method of above-mentioned conveying concrete cylinder by being limited to the various parameters in differential of the arc hardening treatment process, and then the conveying concrete cylinder working respective hardness of aluminum oxide tectorium and aluminum oxide tight zone and the thickness on the surface prepared by controlling, and then formed better by aluminium alloy preparation cylinder body, aluminum oxide tectorium to the transition structure of aluminum oxide tight zone, reduce internal stress between layers, can more be adapted to concrete pumping process, reduce pull-cylinder phenomena, increase the service life.
In the preferred embodiment of the present invention, the manufacture method neutral and alkali electrolytic solution of above-mentioned conveying concrete cylinder is the sodium salt solution that pH value is more than or equal to 8, and wherein the concentration of Na ion is 10 ~ 15g/l.By controlling the volumetric molar concentration of pH and Na ion of alkaline electrolyte in this manufacture method, the specific conductivity of adjustment mixing solutions, and then be conducive to impelling aluminum oxide to generate in basic solution and running balance appears in dissolving, the ceramic layer that generation satisfies condition.
Preferably, the above-mentioned mixing solutions for as the sodium salt solution of alkaline electrolyte being NaOH and sodium salt, sodium salt is Na
3pO
4, Na
2siO
3, NaAlO
2in one or more.In this sodium salt solution, by adding the pH value of NaOH regulator solution, keeping cationic unicity, being conducive to the unicity and the homogeneity that ensure the alumina-ceramic film layer material formed, and then due to the performance of alumina-ceramic thin film layer.
In the preferred embodiment of the present invention, in the manufacture method of above-mentioned conveying concrete cylinder, step S2 comprises further: will prepare cylinder surface polishing, after oil removing on its non-working surface application insullac, form transition cylinder body.To preparation cylinder body surface polish and oil removing be more conducive to prepare cylinder surface coating insullac sticking power, form more uniform insullac thin film layer.The process of polishing and oil removing adopts routine techniques, and detailed process does not repeat them here.Insullac used in the present invention includes but not limited to alkyd varnish, epoxy resin-based paint.As long as this insullac itself does not react with alkaline electrolyte, and the part being coated with insullac in conveying concrete cylinder can be isolated, make it not carry concrete cylinder to react with isolation just passable.
In the preferred embodiment of the present invention, in the manufacture method of above-mentioned conveying concrete cylinder, step S3 comprises further: A, taken out from alkaline electrolyte by the conveying concrete cylinder obtained through differential of the arc hardening treatment, and the conveying cylinder surfaces electrolytic solution taken out is removed in cleaning; B, the working-surface of the conveying concrete cylinder after surface drying carried out oilstone Hang and grind process, obtain the finished product conveying concrete cylinder that working surface roughness is less than 0.3.Grinding process through oilstone Hang can make silicon grain part expose the working-surface of alumina-ceramic thin film layer, can play better wear-resisting effect.
In the preferred embodiment of the present invention, in order to ensure the present invention's conveying concrete to be prepared cylinder rigidity, in the manufacture method of above-mentioned conveying concrete cylinder, after step S3, be also included in the step of wound composite on conveying concrete cylinder outside surface.This matrix material includes but not limited to carbon-fibre composite.Its canoe adopts conventional winding process.
Meanwhile, in the typical embodiment of one of the present invention, additionally provide a kind of conveying concrete cylinder, as shown in Figures 2 and 3, this conveying concrete cylinder comprises: cylinder body 1 and alumina-ceramic thin film layer 3.Cylinder body 1, is made up of aluminum alloy material, and wall thickness is 8 ~ 60mm; Alumina-ceramic thin film layer 3, covers on the working-surface of cylinder body 1, and the hardness of alumina-ceramic thin film layer 3 outside surface is HV1500 ~ 2000, and thickness is 60 ~ 200 μm.This conveying concrete cylinder provided by the present invention alleviates the overall weight of carrying concrete cylinder by adopting the aluminium alloy of lightweight to make cylinder body, makes it easy to handling.On the other hand by controlling the hardness of this aluminium alloy self and the thickness of alumina-ceramic thin film layer and surface hardness, be both coordinated, to be adapted to concrete pumping process to the requirement of carrying concrete cylinder hardness and wear resistance.
Preferably, in above-mentioned conveying concrete cylinder, alumina-ceramic thin film layer 3 comprises aluminum oxide tight zone 33 and aluminum oxide tectorium 31.Aluminum oxide tight zone 33 covers on the internal surface of cylinder body 1, and the thickness of aluminum oxide tight zone 33 is 30 ~ 150 μm, and hardness is HV1000 ~ 2000.On the internal surface of the aluminum oxide tight zone 33 that aluminum oxide tectorium 31 covers, and the thickness of aluminum oxide tectorium 31 is 10 ~ 15 μm, and hardness is HV700 ~ 1000.In the conveying concrete cylinder with this structure, by thickness and the hardness of Collaborative Control aluminum oxide tectorium 31 and aluminum oxide tight zone 33, conveying concrete cylinder is made to form good transition by aluminium alloy cylinder, aluminum oxide tectorium to aluminum oxide tight zone, it is made to be more suitable for using, reduce internal stress between layers, can more be adapted to concrete pumping process, reduce pull-cylinder phenomena, increase the service life
Above-mentioned provided conveying concrete cylinder may be used in pumping equipment with concrete piston with the use of, the pumping equipment formed is because have employed this conveying concrete cylinder, on the one hand because of the lighter weight of this conveying concrete cylinder, the structural requirement of pumping equipment is reduced relatively, alleviate the cost of manufacture of pumping equipment, extend work-ing life.On the other hand, because the lighter weight of this conveying concrete cylinder, for conveying concrete cylinder is provided convenience in the dismounting of pumping equipment.Meanwhile, because adopted Heat Transfer for Aluminum is better than steel alloy, energy is heat conduction preferably, reduces the temperature of piston, slow down the thermal ageing of piston, improve the life-span of piston.In addition, because the raising of the hardness of conveying concrete cylinder own, wear resisting property, the work-ing life of pumping equipment is extended equally.
Below with reference to specific embodiment 1-5, and comparative example 1 further illustrates the beneficial effect of the manufacture method of conveying cylinder provided by the present invention.
Embodiment 1
The preparation method of conveying concrete cylinder is as follows:
S1, get aluminium alloy, through machining, to form hardness be wall thickness is the preparation cylinder body of 8mm;
S2, cylinder surface polishing will be prepared, the alkyd varnish that after oil removing, application is produced by Xiang River paint company on its non-working surface, form transition cylinder body;
S3, at normal temperatures, by transition cylinder body mass-impregnation in alkaline electrolyte, wherein alkaline electrolyte is 1.5g/LNaOH and concentration by concentration is the Na of 5g/L
2siO
3mixed preparing pH value is the mixed electrolytic solution of 8.The temperature keeping electrolytic solution is 15 DEG C, aluminium alloy cylinder is applied the DC pulse current of 100Hz as anode, the minimum voltage of setting pulse is 15V, the highest at 200V, differential of the arc hardening treatment process 35min, it is 30 μm that the working face of preparation cylinder body forms thickness successively; Hardness is the aluminum oxide tight zone of HV2000, and thickness is 10 μm; Hardness is the aluminum oxide tectorium of HV1000, obtains surface hardness to be
1800conveying concrete cylinder.
The conveying concrete cylinder obtained through differential of the arc hardening treatment is taken out from alkaline electrolyte cleaning and take out conveying cylinder surfaces electrolytic solution; The working-surface of the described conveying concrete cylinder after surface drying is carried out oilstone Hang and grind process, obtain the finished product conveying concrete cylinder that working surface roughness is 0.08.
Embodiment 2
The preparation method of conveying concrete cylinder is as follows:
S1, get aluminium alloy, form through machining the preparation cylinder body that wall thickness is 60mm;
S2, cylinder surface polishing will be prepared, the alkyd varnish that after oil removing, application is produced by Xiang River paint company on its non-working surface, form transition cylinder body;
S3, at normal temperatures, by transition cylinder body mass-impregnation in alkaline electrolyte, wherein alkaline electrolyte is 2g/LNaOH and concentration by concentration is the Na of 5g/L
3pO
4be mixed with the mixed electrolytic solution that pH value is 8.5.The temperature keeping alkaline electrolyte is 40 DEG C, aluminium alloy cylinder is applied the DC pulse current of 1000Hz as anode, the minimum voltage of setting pulse is 50V, the highest at 500V differential of the arc hardening treatment process 20min, and it is 150 μm that the working face of preparation cylinder body forms thickness successively; Hardness is the aluminum oxide tight zone of HV2000, and thickness is 15 μm; Hardness is the aluminum oxide tectorium of HV700, and obtaining surface hardness is that HV1600 carries concrete cylinder.
The conveying concrete cylinder obtained through differential of the arc hardening treatment is taken out from described alkaline electrolyte cleaning and take out conveying cylinder surfaces electrolytic solution; The working-surface of the described conveying concrete cylinder after surface drying is carried out oilstone Hang and grind process, obtain the finished product conveying concrete cylinder that working surface roughness is less than 0.1.
Embodiment 3
The preparation method of conveying concrete cylinder is as follows:
S 1, get aluminium alloy, form through machining the preparation cylinder body that wall thickness is 30mm;
S2, cylinder surface polishing will be prepared, the alkyd varnish that after oil removing, application is produced by Xiang River paint company on its non-working surface, form transition cylinder body;
S3, at normal temperatures, by transition cylinder body mass-impregnation in alkaline electrolyte, wherein alkaline electrolyte is 1.5g/LNaOH and concentration by concentration is the Na of 5g/L
2siO
3be mixed with pH value be 7.5 mixed preparing form.The temperature keeping alkaline electrolyte is 20 DEG C, aluminium alloy cylinder is applied the DC pulse current of 800Hz as anode, the minimum voltage of setting pulse is 20V, the highest at 200V, differential of the arc hardening treatment process 35min, it is 80 μm that the working face of preparation cylinder body forms thickness successively; Hardness is the aluminum oxide tight zone of HV1600, and thickness is 12 μm; Hardness is the aluminum oxide tectorium of HV800, and obtaining surface hardness is that HV1300 carries concrete cylinder.
The conveying concrete cylinder obtained through differential of the arc hardening treatment is taken out from described alkaline electrolyte cleaning and take out conveying cylinder surfaces electrolytic solution; The working-surface of the described conveying concrete cylinder after surface drying is carried out oilstone Hang and grind process, obtain the finished product conveying concrete cylinder that working surface roughness is less than 0.3.
Embodiment 4
The preparation method of conveying concrete cylinder is as follows:
S1, get aluminium alloy, form through machining the preparation cylinder body that wall thickness is 50mm;
S2, cylinder surface polishing will be prepared, the alkyd varnish that after oil removing, application is produced by Xiang River paint company on its non-working surface, form transition cylinder body;
S3, at normal temperatures, by transition cylinder body mass-impregnation in alkaline electrolyte, wherein alkaline electrolyte is 1.5g/LNaOH and concentration by concentration is the Na of 5g/L
2siO
3be mixed with the mixed electrolytic solution that pH value is 8.The temperature keeping alkaline electrolyte is 20 DEG C, aluminium alloy cylinder is applied the DC pulse current of 800Hz as anode, the minimum voltage of setting pulse is 20V, the highest at 200V, differential of the arc hardening treatment process 35min, it is 80 μm that the working face of preparation cylinder body forms thickness successively; Hardness is the aluminum oxide tight zone of HV1300, and thickness is 12 μm; Hardness is the aluminum oxide tectorium of HV1000, and obtaining surface hardness is that HV1200 carries concrete cylinder.
The conveying concrete cylinder obtained through differential of the arc hardening treatment is taken out from described alkaline electrolyte cleaning and take out conveying cylinder surfaces electrolytic solution; The working-surface of the described conveying concrete cylinder after surface drying is carried out oilstone Hang and grind process, obtain the finished product conveying concrete cylinder that working surface roughness is less than 0.3.
Embodiment 5
The preparation method of conveying concrete cylinder is as follows:
S1, get aluminium alloy, form through machining the preparation cylinder body that wall thickness is 50mm;
S2, the alkyd varnish that the application of application insullac is produced by Xiang River paint company on the non-working surface of described preparation cylinder body, form transition cylinder body;
S3, at normal temperatures, by transition cylinder body mass-impregnation in alkaline electrolyte, wherein alkaline electrolyte is 1.5g/LNaOH and concentration by concentration is the Na of 5g/L
2siO
3be mixed with the mixed electrolytic solution that pH value is 8.The temperature keeping alkaline electrolyte is 20 DEG C, aluminium alloy cylinder is applied the DC pulse current of 100Hz as anode, the minimum voltage of setting pulse is 15V, the highest at 200V, differential of the arc hardening treatment process 35min, it is 30 μm that the working face of preparation cylinder body forms thickness successively; Hardness is the aluminum oxide tight zone of HV1900, and thickness is 10 μm; Hardness is the aluminum oxide tectorium of HV1000, and obtaining surface hardness is that HV1700 carries concrete cylinder.
The conveying concrete cylinder obtained through differential of the arc hardening treatment is taken out from described alkaline electrolyte cleaning and take out conveying cylinder surfaces electrolytic solution; The working-surface of the described conveying concrete cylinder after surface drying is carried out oilstone Hang and grind process, obtain the finished product conveying concrete cylinder that working surface roughness is less than 0.1.
Comparative example 1
Prepare according to prior art a kind of with steel formation preparation cylinder barrel, and be 0.3mm at preparation cylinder barrel internal surface chromium plating formation chromium coating thickness, surface hardness hardness is the conveying concrete cylinder of HV950.
Performance test
Conveying cylinder prepared by embodiment 1-5 and comparative example 1 is carried out wear-resisting, cracking breakout and test in work-ing life, test-results is listed in table 1.
Wherein, coating and alumina ceramic layer wear resistance abrasive wear data characterization, produce 57x25x6mm standard sample, and select MLS-225 type wet type rubber wheel abrasive wear pressure testing machine, test conditions is: revolution 2000r; Rotating speed 252r/min; Positive pressure 170N; 60 order white fused aluminas.The mass loss rate of test specimens block.
The testing method of cracking breakout is the crackle number of observing under an optical microscope and calculating through 1 mm length straight line, criterion be through 1 mm length straight line crackle number more multilist bright coating fragility and internal stress larger.
It is longer that the testing method in work-ing life is that the more multilist bright life-span is measured by the side being pump concrete by metering pumping concrete side amount criterion.
Table 1
| Wear resistance (%) | Cracking breakout | Work-ing life (C30 concrete) | |
| Embodiment 1 | 0.00367 | 5 | 130000 sides |
| Embodiment 2 | 0.00314 | 4 | 130000 sides |
| Embodiment 3 | 0.00217 | 2 | 150000 sides |
| Embodiment 4 | 0.00294 | 2 | 150000 sides |
| Embodiment 5 | 0.00346 | 4 | 140000 sides |
| Comparative example 1 | 0.14681 - | 80000 sides |
The preparation cylinder body adopted in embodiment of the present invention 1-5 is the aluminium alloy of lightweight, and its weight is starkly lower than the preparation cylinder body prepared by steel in comparative example 1, and this just makes the conveying concrete cylinder prepared by the present invention be easier to assembling.Simultaneously, the surface hardness of the concrete cylinder prepared by comparative example 1 is obviously greater than by the surface hardness of concrete cylinder prepared in embodiment of the present invention 1-5, concrete cylinder prepared by the present invention achieves the object of the conveying concrete cylinder bulk strength prepared by simultaneously improving and hardness by the coordinated of aluminium alloy cylinder body and alumina-ceramic thin film layer, from data in table 1, it not only increases the wear resistance of prepared concrete cylinder, reduce cracking breakout, significantly extend the work-ing life of this conveying concrete cylinder simultaneously.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. carry a manufacture method for concrete cylinder, it is characterized in that, comprise the following steps:
S1, get aluminium alloy, form through machining the preparation cylinder body that wall thickness is 8mm ~ 60mm;
S2, on the non-working surface of described preparation cylinder body application insullac, form transition cylinder body;
S3, by described transition cylinder body mass-impregnation to alkaline electrolyte, on the working-surface of described transition cylinder body, form through the differential of the arc hardening treatment alumina-ceramic thin film layer that surface hardness is HV1000 ~ HV 1800, obtain described conveying concrete cylinder;
Wherein, in described step S3, the step of differential of the arc hardening treatment comprises further:
At normal temperatures, by described transition cylinder body mass-impregnation in alkaline electrolyte, temperature is kept to be 15 ~ 40 DEG C, described aluminium alloy cylinder is applied the DC pulse current of 100 ~ 5000Hz as anode, control voltage, makes the minimum voltage of pulse within the scope of 15 ~ 50V, maximum voltage is within the scope of 150 ~ 500V, process 20 ~ 60min, the working-surface of described transition cylinder body is formed the alumina-ceramic thin film layer that thickness is 40 ~ 200 μm, obtains described conveying concrete cylinder.
2. manufacture method according to claim 1, is characterized in that, described alumina-ceramic thin film layer comprises aluminum oxide tectorium and aluminum oxide tight zone, and in described step S3, step is as follows:
At normal temperatures, by described transition cylinder body mass-impregnation in alkaline electrolyte, temperature is kept to be 15 ~ 25 DEG C, described aluminium alloy cylinder is applied the DC pulse current of 100 ~ 1000Hz as anode, the minimum voltage of setting pulse is within the scope of 20 ~ 30V, the highest within the scope of 200 ~ 250V, process 35 ~ 40min, it is 30 ~ 150 μm that the working face of described preparation cylinder body is formed thickness successively; Hardness is the aluminum oxide tight zone of HV1000 ~ 2000, and thickness is 10 ~ 15 μm; Hardness is the aluminum oxide tectorium of HV700 ~ 1000, obtains described conveying concrete cylinder.
3. manufacture method according to claim 1 and 2, is characterized in that, described alkaline electrolyte is the sodium salt solution that pH value is more than or equal to 8, and wherein the concentration of Na ion is 10 ~ 15g/l.
4. manufacture method according to claim 1 and 2, is characterized in that, described sodium salt solution is the mixing solutions of NaOH and sodium salt, and described sodium salt is Na
3pO
4, Na
2siO
3, NaAlO
2in one or more.
5. manufacture method according to claim 1 and 2, is characterized in that, described step S2 comprises further: by the polishing of described preparation cylinder surface, after oil removing on its non-working surface application insullac, form described transition cylinder body.
6. manufacture method according to claim 1 and 2, is characterized in that, described step S3 comprises further:
A, the conveying concrete cylinder obtained taken out from described alkaline electrolyte cleaning take out conveying cylinder surfaces electrolytic solution through differential of the arc hardening treatment;
B, the working-surface of the described conveying concrete cylinder after surface drying carried out oilstone Hang and grind process, obtain the finished product conveying concrete cylinder that working surface roughness is less than 0.3.
7. manufacture method according to claim 1 and 2, is characterized in that, is also included in the step of wound composite on described conveying concrete cylinder outside surface after described step S3.
8. carry a concrete cylinder, it is characterized in that, described conveying concrete cylinder comprises:
Cylinder body, is made up of aluminum alloy material, and wall thickness is 8 ~ 60mm;
Alumina-ceramic thin film layer, covers on the surfaces externally and internally of described cylinder body, and the hardness of described alumina-ceramic thin film layer surfaces externally and internally is HV1500 ~ 2000, and thickness is 60 ~ 200 μm.
9. conveying concrete cylinder according to claim 8, is characterized in that, described alumina-ceramic thin film layer comprises:
Aluminum oxide tight zone, covers on described inner surface of cylinder block, and the thickness of described aluminum oxide tight zone is 30 ~ 150 μm, and hardness is HV1000 ~ 2000;
Aluminum oxide tectorium, on the internal surface of the aluminum oxide tight zone covered, and the thickness of described aluminum oxide tectorium is 10 ~ 15 μm, and hardness is HV700 ~ 1000.
10. a pumping equipment, comprises conveying concrete cylinder and the concrete piston of cooperating, it is characterized in that, described conveying concrete cylinder is the conveying concrete cylinder described in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508882.3A CN102978675B (en) | 2012-12-03 | 2012-12-03 | Concrete conveying cylinder, manufacturing method thereof and pumping equipment comprising concrete conveying cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508882.3A CN102978675B (en) | 2012-12-03 | 2012-12-03 | Concrete conveying cylinder, manufacturing method thereof and pumping equipment comprising concrete conveying cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102978675A CN102978675A (en) | 2013-03-20 |
| CN102978675B true CN102978675B (en) | 2015-06-24 |
Family
ID=47853006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210508882.3A Active CN102978675B (en) | 2012-12-03 | 2012-12-03 | Concrete conveying cylinder, manufacturing method thereof and pumping equipment comprising concrete conveying cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102978675B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213171B (en) * | 2014-09-05 | 2017-02-08 | 山东滨州渤海活塞股份有限公司 | Method for manufacturing titanium oxide class ceramic coating on surface of aluminum-alloy piston |
| CN109183112A (en) * | 2018-09-26 | 2019-01-11 | 沈阳大学 | A kind of aluminum alloy surface low pressure ceramic coating formed by micro-arc oxidation preparation method |
| CN113294261B (en) * | 2021-06-29 | 2022-08-23 | 潍柴动力股份有限公司 | Cylinder cover, coating preparation device and coating preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554807A (en) * | 2003-12-22 | 2004-12-15 | 西安理工大学 | Electrolytic solution for aluminium alloy cast piece micro arc oxidation treatment |
| CN2665381Y (en) * | 2003-08-28 | 2004-12-22 | 重庆镁业科技股份有限公司 | Aluminium alloy engine cylinder block |
| CN101705928A (en) * | 2009-12-01 | 2010-05-12 | 北汽福田汽车股份有限公司 | Concrete transfer pump |
-
2012
- 2012-12-03 CN CN201210508882.3A patent/CN102978675B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2665381Y (en) * | 2003-08-28 | 2004-12-22 | 重庆镁业科技股份有限公司 | Aluminium alloy engine cylinder block |
| CN1554807A (en) * | 2003-12-22 | 2004-12-15 | 西安理工大学 | Electrolytic solution for aluminium alloy cast piece micro arc oxidation treatment |
| CN101705928A (en) * | 2009-12-01 | 2010-05-12 | 北汽福田汽车股份有限公司 | Concrete transfer pump |
Non-Patent Citations (2)
| Title |
|---|
| 2A12合金微弧氧化工艺因素的影响研究;郭孟秋等;《装备环境工程》;20081031;第5卷(第5期);38-41页 * |
| 铝合金微弧氧化技术研究概况;石小超等;《铝合金微弧氧化技术研究概况》;20121130;第35卷(第6期);92-95页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102978675A (en) | 2013-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103014804B (en) | Surface has aluminium alloy of green black colour ceramic coating formed by micro-arc oxidation and preparation method thereof | |
| CN106191956B (en) | The surface treatment method and corresponding aluminium alloy of a kind of aluminium alloy | |
| US10801122B2 (en) | Protective edge for a blade and method of manufacturing said edge | |
| CN103643278B (en) | A kind of method of auto parts machinery aluminium differential arc oxidation | |
| CN102199785B (en) | Microarc oxidation solution of titanium alloy wear-resistant coating and application thereof | |
| CN102978675B (en) | Concrete conveying cylinder, manufacturing method thereof and pumping equipment comprising concrete conveying cylinder | |
| CN104514027A (en) | Electrolyte solution for preparing aluminum and aluminum alloy ceramic membrane through micro-arc oxidation technology | |
| CN105951151A (en) | Nanometer graphene reflection thermal insulation composite multifunctional ceramic coating layer and preparation method thereof | |
| CN107937961A (en) | The aluminium alloy surface treatment method and pulse electrodeposition hole sealing device of differential arc oxidation combination pulse electrodeposition sealing of hole | |
| CN101158401A (en) | Ceramic cylinder and producing technology thereof | |
| CN103016334B (en) | A kind of abrasion-proof concrete conveying cylinder and preparation process thereof | |
| Karakurkchi et al. | Electrodeposition of iron–molybdenum–tungsten coatings from citrate electrolytes | |
| CN108914187A (en) | A kind of anti-oxidant complex gradient ceramic coating of titanium alloy surface high hardness wear-resisting and preparation method thereof | |
| CN108977865A (en) | A kind of preparation method of 5XXX aluminium and the high anti-corrosion single fine and close differential arc oxidation film layer of aluminum alloy surface | |
| CN105154951A (en) | Method for preparing nano SiO2 containing coating on surface of cast aluminium alloy through micro-arc oxidation | |
| CN107557836A (en) | TiAl alloy surface cathode micro arc plasma body electrolytic deposition prepares CeO2‑Al2O3The method of composite ceramic layer | |
| CN103484849B (en) | A kind of aluminium-alloy piston and precision friction secondary surface treatment process | |
| CN101963199A (en) | Motor vehicle aluminium alloy brake with micro-arc oxidation ceramic coating braking surface | |
| CN104532322A (en) | Anodic oxidation method for titanium-aluminum alloy in ionic liquid | |
| US12000497B2 (en) | Gm type cryogenic refrigerator rotary valve | |
| CN109333004A (en) | A kind of the processing of sphere technique and seal ball-valve of ceramic seal ball-valve | |
| CN104947166A (en) | Micro-arc oxidation process method for pre-treating aluminum alloy based on solution and aging | |
| CN101885052B (en) | Method for manufacturing aluminum alloy ceramic cylinder embedded with aluminum alloy sleeve | |
| CN101381884A (en) | Aluminum alloy synchronization ring with TiAl/Al2O3 ceramic coating formed by micro-arc oxidation at the surface | |
| CN109161951A (en) | A kind of magnesium alloy differential arc oxidation electrolyte and its application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |